Information Exposure Affecting mediawiki package, versions *


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.3% (70th percentile)

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  • Snyk IDSNYK-RHEL9-MEDIAWIKI-3398921
  • published26 Mar 2023
  • disclosed18 Dec 2020

Introduced: 18 Dec 2020

CVE-2020-35480  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 mediawiki.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mediawiki package and not the mediawiki package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. This exists on various code paths.

CVSS Scores

version 3.1